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Estimating Tropical Cyclone Precipitation from Station Observations
作者姓名:任福民  王咏梅  王小玲  李维京
作者单位:[1]State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 [2]National Climate Center, China Meteorological Administration, Beijing 100081 [3]Yuncheng Weather Bureau, Yuncheng 044000
基金项目:Acknowledgements. The authors would like to express their sincere thanks to Prof. Wu Guoxiong, Dr. Wu Liguang, Prof. Dong Wenjie, Dr. Zhang Peiqun, Dr. Lei Xiaotu and Mr. Muhammad Afzaal for their helpful suggestions and discussions concerning this study. This work was supported by the Chinese Ministry of Science and Technology Project (Grant No. 2006CB403601) and the Special Foundation of Shanghai Typhoon Institute, China Meteorological Administration under the 2005 project.
摘    要:In this paper, an objective technique for estimating the tropical cyclone (TC) precipitation from station observations is proposed. Based on a comparison between the Original Objective Method (OOM) and the Expert Subjective Method (ESM), the Objective Synoptic Analysis Technique (OSAT) for partitioning TC precipitation was developed by analyzing the western North Pacific (WNP) TC historical track and the daily precipitation datasets. Being an objective way of the ESM, OSAT overcomes the main problems in OOM, by changing two fixed parameters in OOM, the thresholds for the distance of the absolute TC precipitation (D0) and the TC size (D1), into variable parameters.
Case verification for OSAT was also carried out by applying CMORPH (Climate Prediction Center MORPHing technique) daily precipitation measurements, which is NOAA's combined satellite precipitation measurement system. This indicates that OSAT is capable of distinguishing simultaneous TC precipitation rain-belts from those associated with different TCs or with middle-latitude weather systems.

关 键 词:热带气旋  降水  天气分析  原始目标法
收稿时间:22 May 2006
修稿时间:2006-05-222006-09-06

Estimating tropical cyclone precipitation from station observations
Ren?Fumin,Wang?Yongmei,Wang?Xiaoling,Li?Weijing.Estimating Tropical Cyclone Precipitation from Station Observations[J].Advances in Atmospheric Sciences,2007,24(4):700-711.
Authors:Ren Fumin  Wang Yongmei  Wang Xiaoling  Li Weijing
Institution:State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029; National Climate Center, China Meteorological Administration, Beijing 100081,Yuncheng Weather Bureau, Yuncheng 044000,National Climate Center, China Meteorological Administration, Beijing 100081,National Climate Center, China Meteorological Administration, Beijing 100081
Abstract:In this paper, an objective technique for estimating the tropical cyclone (TC) precipitation from station observations is proposed. Based on a comparison between the Original Objective Method (OOM) and the Expert Subjective Method (ESM), the Objective Synoptic Analysis Technique (OSAT) for partitioning TC precipitation was developed by analyzing the western North Pacific (WNP) TC historical track and the daily precipitation datasets. Being an objective way of the ESM, OSAT overcomes the main problems in OOM,by changing two fixed parameters in OOM, the thresholds for the distance of the absolute TC precipitation (D0) and the TC size (D1), into variable parameters.Case verification for OSAT was also carried out by applying CMORPH (Climate Prediction Center MORPHing technique) daily precipitation measurements, which is NOAA's combined satellite precipitation measurement system. This indicates that OSAT is capable of distinguishing simultaneous TC precipitation rain-belts from those associated with different TCs or with middle-latitude weather systems.
Keywords:tropical cyclone precipitation  the Original Objective Method  comparison analysis  the Objective Synoptic Analysis Technique
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